Electric signaling apparatus



(No Model.) 2 Sheets-Sheet 1 B. J. 'N'OYES. ELECTRIC SIGNALING APPARATUS.

No. 466,053. Patented DecLZ'Q, 1891 yaw/{ 9M ernioa JWgea,

@faCAm/w W7 (No Model.) 2 Sheets--Sheet 2.

B. J. NOYES. ELECTRIC SIGNALING APPARATUS.

No. 466,053. Patented Dec. 29,1891.

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' UNITED STATES PATENT OFFICE.

BERNIOE J. NOYES, OF BOSTON, MASSACHUSETTS.

ELECTRIC SIGNALING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 466,053, dated December 29, 1891.

Application filed November 4, 1890. Serial No. 370,295. (No model.)

To all whom it may concern.-

Be it known that I, BERNICE J. Novas, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvementin Electric Signaling Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

In police and other intercom munication systems it is now common to arrange signal-boxes on circuits leading to the central office, such boxes being adapted to transmit one or more signals, and in many of such cases each signal-loox is provided with an answer-back bell which is operated by an attendant at the central office. It is usual for the attendant at the central office on the reception of the signal to operate the answer-back circuit-changing device to cause the answer-hack bell to give one or more taps.

In police-signal systems one of the important signals which is transmitted is the wagonsignal, and as the wagon-house is oftentimes a long distance from the central station this signal is repeated to said wagon-house by a multiple signal transmitting apparatus of some kind operating an independent circuit. \Vhen an officer sends in a Wagon-signal, it is very desirable for him to know that it has been received and also that it has been repeated, and, furthermore, that the correct number has been received and repeated to thereby inspire courage should the oflicer be holding an unruly prisoner and, also, to save time in case the attendant should make a mis take in repeating the signal and the wrong number should be received at the wagonhouse, the Wagon in such instance going to the wrong box.

This invention has for its object to place the answer-back circuit-changing device or devices under the control of the wagon-transmitter, so that at the time the wagon-signal is transmitted from the central office to the wagon-house the same number,which is the box-number, will be tapped on the answerback bell in the signal-box.

In carrying out this invention I have provided an electro-magnet for operating the answer-back circuit-changing device and have included said electro-magnet in an independent circuit. I have also provided a switch for the actuating electro-magnet of the answerback circuit-changing device, which is operated, preferably, automatically by the multiple signal-transmitting apparatus employed to transmit the wagon-signals.

Figure 1 shows in diagram a signalingsystem especially adapted for police-signaling apparatus, showing two main signaling-circuits, a single wagon-circuit, and operating devices embodying this invention; Fig. 2, a

front elevation of one form of multiple signal-transmitting apparatus which may be employed in connection with this invention, and Figs. 3 and 4 details of the multiple signaltransmitting apparatus to be referred to.

The main signaling-circuit Cl, contains signaling-boxes I), each of which contains a signal-transmitting apparatus, as c, and an answer-back belld. Preferably at the central station a receiving-relay c is employed, the armature of which controls a local circuit e, containing a register 6 which receives the signals transmitted from the boxes; but in lieu of this form of receiving apparatus any other suitable form may be employed.

The answer-back bells in the signal-boxes are herein represented as polarized bells, and at a point in the circuit aas at the central ofiice, for instancean answer-back circuitchanging device is included, it being herein represented as a pole-changerf, the operating member of which is controlled by an electromagnet f.

At the central ot'fice a multiple signal-transmitting apparatus, such as represented in Figs. 2 to 4, or any well-known equivalent therefor, may be employed, which operates an independent wagon-circuit g, containing a battery g, a register 9 and a bell g or. any other suitable receiving apparatus.

Referring to Fig. 1, the circuit-closing device 2 3 represents themultiple signal-transmitter. The independent wagon-circuit g also includes an electro-magnet f of the answerback circuit-changing device. When a signal is received from one of the boxes I) at the central station, an attendant repeats this signal by the multiple signal-transmitting apparatus 2 3 to the wagon-house, and as the signal which he transmits is the box-number the magnet f will report the same, the register 9 bell and the answer-back circuit-change in g device being thus operated by the electromagnet f, the box-number will be tapped on the answer-back bell cl in the box. By this means the officer will know that his signal has been received and that it has been correctly repeated.

In police-signal systems as commonly constructed several signaling circuits radiate from a signal-box or station-house, and but one wagon-circuit is employed, and hence to make the parts automatic in their action I have provided each signaling-circuit with a separate answer-back circuit-chan gin g device and have provided an eleetro-magnet, as f, for each answer-back circuit-changing device, and have included the magnets in the wagom circuit g in multiple are, and have hence provided a switch, such as 4: 5, for each branch wire, one or another of which switches will be closed to include in the wagon-circuit, and thereby render responsive one or another of the eleetro-magnets f.

, The multiple signal transmitter herein shown is substantially the same as shown in my application, Serial No. 365,707, filed September 22, 1890, yet so far as the essential features of my present invention are concerned any other suitable form may be employed. This particular form of multiple signal-transmitter comprises a toothed wheel a, arranged on a winding-shaft a and in mesh with a pinion a (see dotted lines,) secured to a shaft a to which shaft is secured a toothed wheel a, engaging apinion secured to a shaft a, to which a toothed wheel a is secured, which engages a pinion a, secured to a shaft a, carrying an escape-wh eel a adapted to cooperate with any suitable pallet. A signaling-key consisting of the stationary contactpen 2 and the movable contact-pen 3 occupies a suitable location to'co-operate with a signal-wheel b (see Figs. 3 and 4,) which is herein shown as secured to a shank b, to which a knob Z1 is secured and by which it may be moved at will. The signal-wheel has formed on it or secured to it a tapering hub 11 The signal-wheel b is removable at will from its shaft a in order that another wheel having a different predetermined signal thereon may be substituted. Alet-off is provided for the train consisting of a bell-crank lever pivoted at 0 to the frame-work, one arm of which, as c, has on it a pin 0 which engages a pin 0 on the wheel a, and the other arm, as c", of which normally bears against a pin 0 on the frame. The arm 0 is of suitable length to lie in the path of movement of the tapering hub Z1 when in its normal posi- Lion against the pin a, so as to be moved by said hub when the signal-wheel is placed on the shaft a. As the let-off c c is moved by the tapering hub if, this pin 0 releases the pin 0 and thereby the train. The signal-wheel I) will be revolved by means of the shaft a until the pin 0 on the wheel a", arranged in a different distance from the axis of rotation of said wheel, engages and strikes the pin 0 on the arm 0', which at this time will be in the dotted-line position shown. The train will thus be stopped, and the signal-wheel being removed the let-off will resume the normal full-line position shown, and the train will again start and run until the pin 0 engages the pin 0 when the train is again stopped. The hub of the signal-wheel 11 has on it an annular projection 92, which, when placed on the shaft a, is adapted to engage and close the circuit-changing switch 4 5, which is included in the branch wire with the electromagnet f. The annular projection 01 will be arranged on the hubs at different distances from their ends, as shown in Fig. 3, wherein the projection at, full lines, represents the location of the projection when used in connection with one circuit, and dotted lines represents the location for the other circuit, and the switches 4 5 will be located one in advance of the other to co-operate, respectively, p

with the projections of the different hubs.

In the diagram herein shown are two main signaling-circuits, and hence two magnets, as f, and two switches, and the signal-wheels, in addition to having a socket, as 50, to receive the shaft a, also have a socket, as 51, to receive the pin 20, so that when the signalwheel is placed thereon it will always occupy the same relative position to the signalingkey, and the projections 01 on the hubsof all the signal-wheels corresponding to the box in one of the main signaling-circuits, having the projections n arranged thereon at substantially the same point and at a different relative position to the projections placed on the I 10 signal-wheels corresponding to the signal-box of the other main signaling-circuit. By these means there can be no mistake as to the wagon-signal being repeated back to the box over the correct main signaling-circuit.

A signaling-key t is provided, which, when closed on its contact, includes a branch wire t, containing a battery :5 so that the magnet f can be operated manually, if desired.

I claim-- 1. Several signal-boxes, each containing an answer-back bell, an answer back circuitchanging device for said answer-back bells, an electro-magnet which controls the operation of said answer-back circuit-changing 12 5 device, an independent circuit for said electro magnet, a receiving-instrument controlled by said independent circuit, a multiple signaltransmitting apparatus controlling the operation of said independent circuit, and a switch I 30 controlled by a movable member of said multiple signal-transmitting apparatus for introdueing the actuating electro-magnet for the answer-back circuit-changing device, sub- 5 stantially as described.

2. A multiple signal-transmitting apparatus comprising a train, a let-off, a removable signal-wheel, and means controlled by the signal-Wheel for moving the let-off, and a switch controlled and operated by said removable 1o signal-Wheel, substantially as described.

In testimony whereof I have signed my name to this specification in the presenee of two subscribing Witnesses.

BERNIOE J. NOYES. Witnesses:

GEO. W. GREGORY, EMMA J. BENNETT. 

